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DEXA
2008
Springer
154views Database» more  DEXA 2008»
14 years 11 months ago
Approximate Range-Sum Queries over Data Cubes Using Cosine Transform
In this research, we propose to use the discrete cosine transform to approximate the cumulative distributions of data cube cells' values. The cosine transform is known to have...
Wen-Chi Hou, Cheng Luo, Zhewei Jiang, Feng Yan, Qi...
SDM
2003
SIAM
120views Data Mining» more  SDM 2003»
14 years 11 months ago
Estimation of Topological Dimension
We present two extensions of the algorithm by Broomhead et al [2] which is based on the idea that singular values that scale linearly with the radius of the data ball can be explo...
Douglas R. Hundley, Michael J. Kirby
TON
2008
133views more  TON 2008»
14 years 10 months ago
Optimal routing and data aggregation for maximizing lifetime of wireless sensor networks
An optimal routing and data aggregation scheme for wireless sensor networks is proposed in this paper. The objective is to maximize the network lifetime by jointly optimizing data ...
Cunqing Hua, Tak-Shing Peter Yum
CRYPTO
2008
Springer
163views Cryptology» more  CRYPTO 2008»
14 years 11 months ago
Cryptanalysis of the GOST Hash Function
In this article, we analyze the security of the GOST hash function. The GOST hash function, defined in the Russian standard GOST 34.11-94, is an iterated hash function producing a ...
Florian Mendel, Norbert Pramstaller, Christian Rec...
CORR
2011
Springer
234views Education» more  CORR 2011»
14 years 5 months ago
Mutual Information, Relative Entropy, and Estimation in the Poisson Channel
Let X be a non-negative random variable and let the conditional distribution of a random variable Y , given X, be Poisson(γ · X), for a parameter γ ≥ 0. We identify a natural...
Rami Atar, Tsachy Weissman